#include <iostream>
#include <vector>
#include <string>

using namespace std;

void showlist()
{
    std::cout << std::endl;
}

template<class T, class...ARGS>
void showlist(T&& t, ARGS&&...args)
{
    std::cout << t << std::endl;
    showlist(args...);
}

template<class...ARGS>
void function(ARGS&&...args)
{
    std::cout << sizeof...(args) << std::endl;
    showlist(args...);
    return;
}

int main()
{
    function(1, "wangjiale", 1.1);
    return 0;
}